Ford Lrg-425 Engine - Genie Z80/60 Service Manual

February 2015
REV G
Ford LRG-425 EFI Engine
Displacement
Number of cylinders
Bore & stroke
Horsepower
Continuous
Intermittent
Firing order
Low idle
Frequency
High idle
Frequency
Compression ratio
Compression pressure (approx.)
Pressure (psi or bar) of lowest cylinder must be
at least 75% of highest cylinder.
Valve clearances -
collapsed tappet
Lubrication system
Oil pressure
(operating temp. @ 2000 rpm)
Oil capacity
(including filter)
Oil viscosity requirements
Extreme operating temperatures may require the use of
alternative engine oils. For oil requirements, refer to the
Engine Operator Handbook on your machine.
Continuous improvement of our products is a
Genie policy. Product specifications are
subject to change without notice.
Part No. 88619
Oil pressure switch specifications
Torque
153 cu in
2.5 liters
Oil pressure switch point
4
3.78 x 3.4 in
Starter motor
96.01 x 86.36 mm
Normal engine cranking speed
Current draw, normal load
60 @ 2500 rpm
45 kW @ 2500 rpm
Current draw, maximum load
70 @ 2500 rpm
Current draw, no load
52 kW @ 2500 rpm
Maximum circuit voltage drop
1 - 3 - 4 - 2
while starting (normal temperature)
1600 rpm
Battery
396.8 Hz
Type
2500 rpm
620 Hz
Group
9.4:1
Quantity
Cold cranking ampere
Reserve capacity @ 25A rate
Electronic fuel pump
0.035 to 0.055 in
0.889 to 1.397 mm
Fuel pressure, static
Fuel flow rate
40 to 60 psi
2.75 to 4.1 bar
Fuel requirement
5 quarts
4.7 liters
For fuel requirements, refer to the engine Operator's
Manual on your machine.
Ignition system
Spark plug type
Spark plug gap
Spark plug torque
Z-80/60
Section 2 • Specifications
SPECIFICATIONS
8-18 ft-lbs
11-24 Nm
3-5 psi
0.21-0.34 bar
200 to 250 rpm
140-200A
800A
70A
0.5V DC
12V DC
34/78
900A
200 minutes
64 psi
4.4 bar
0.58 gpm
2.18 L/min
Motorcraft AWSF-52C
0.042 to 0.046 in
1.07 to 1.18 mm
5 to 10 ft-lbs
7 to 14 Nm
2 - 7
1